Patent · US Expired

Process and system for the oxidation of engine emission particulates deposited in a particulate filter trap

US4730454A · kind A · utility

39Cited by

4References

24Claims

0Family size

Assignee

FEV Forschungsgesellschaft fur Energietechnik und Verbrennungsmotoren mbH · DE

Inventors

Franz Pischinger · Aachen, DE
Gerhard Lepperhoff · Eschweiler, DE

Key dates

Filing date	Oct 27, 1986
Grant date	Mar 15, 1988
Priority date	—
Expiry date	Oct 27, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/30
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A process for the oxidation of a concentration of internal combustion engine emission particulates collected in a particulate filter trap by supplying secondary energy to the deposit at the inlet surface of the filter and/or to the particulate/exhaust gas mixture, includes adjusting the particulate concentration to a value which lies within the explosive range of the particulate/exhaust gas mixture by briefly adding, or recycling, combustible particulates to the exhaust gas flow in the filter, especially in front of the inlet face of the filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.